SOLUTION: 20=1/10r ( find value of r)

Question 13194: 20=1/10r ( find value of r)
Answer by smik(40) (Show Source): You can put this solution on YOUR website!
To solve this you just basically cross multiply. In other words, start off by multiplying each side by 10r, so to get:
20(10r)=1
Expand, and you get:
200r=1
Divide both sides by 200 and you get:
r=1/200
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